Race Glaze water filters are supplied with fixed 3/4" threaded connectors. You will need a 3/4" thread male adapter (available from us at A$9.99/pair) for this female pipe gripping connector which attaches to the end of your hosepipe.
These Connectors feature a female end to connect to the male 3/4 inch converter, the other end screws off to allow the hosepipe to be gripped.
You will need a pair unless you have some in your garage somewhere....
These are the same pattern as the Hoselock connectors no. 2166.